Improvement in turbine water-wheels



' T. LALCQTT.

Turbine water-wheel.

vPatkented Nov. 26, 1872.

MPHOTULITHOGBAPHC C0. NXMSHORNES PRUCE NITED S'rnfrss 'arnN'r OFFICE.

THOMAS J. ALOOT", OF MOUNT HOLLY, NINV JERSEY.

IMPROVEMENT IN TURBIN WATER-WHEELS.

Specification forming part of Letters latcnt No. i?, dated November SG,181i.

To all whom 'it may concern.'

Be it known that I, THOMAS J. ALco'rr, of Mount Holly, county ofBurlington, State of New Jersey, have invented an Improved TurbinelVa-ter-Wheel Case; and I do hereby declare the following to be an exactdescription thereof, reference being had to the accompanying drawing andto the letters oi reference marked thereon making a part of this specification, in which Figure l represents a side elevation and view of theoutside stationary case; lfig. 2, a vertical section ofthe same,exhibiting the inside adjustable cylinder with its chutes or openingscorresponding with the openings of the outer case; and Fig. 3 exhibits acrossvscction ofthe case and inside cylinder.

The nature of my invention consists in the construction of the insidecylinder, with its chutes and vertically-adjustable guides, whencombined with the outside stationary case that is made of one solidcasting.

The object of my invention is to prevent t-he wear of the cylinder, tocause less friction, and make a perfect water-tight joint.VV

A represents the inside adjustable cylinder, with its chutes or openingsB corresponding with the chutes or openings E of the outer stationarycase D 5 the outer case D being made of one solid casting, and the lowerhalf or curb smaller in circumference than the upper part. The upperpart has twelve (more or less) openings, E, andbetween each opening, andon the inside of the cylindrical case D, ,there is a recess, H, for thepurpose of passing' oft' any sand or gritty substances that mightcollect between the cylinders, and causing less friction. On each sideof cach recess, H, there are brass or Babbitt-metal bearings J toprevent the wear of the cylinders, and making a perfect water-tightjoint. The inner cylinder A is adjusted horizontally back and forward,so as to graduate the ilow of the water passing through the openings Eof the outside cylindrical case D, thus diminishing the size oftheopenings or closing them perfectly, whenever required, by means of andthe use of the common rack K and pinion L above; and the inner cylinderA is also adjusted vertically by the tightening or loosening of the nutsM of the bolts or guides C that pass through the top ci the case and thecross-arms N of the top of the inner cylinder A, the arms N being belowthe cover P of the case; and their central circular -plate S worksbackward and forward against and around the lower part of the dome ofthetop, as shown at It, and secured to the cylinder A by screw-bolts T.

lVhat I claim as my invention, and desire to secure by Letters Patent,is-

rlhe vertical adjustable guides G C with the cross-arms N below thecover P, circular plate S, recesses H H, and bearings J J, as anair-tight joint, when arranged, constructed, and operating as hereindescribed, and for the purpose set forth.

` THOMAS J. ALCOTT. Witnesses:

J. FRANKLIN Rnrcnn'r, EDM. F. BROWN.

